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I. E. BOOTH.

SHOE STRETGHING MACHINE. A1\I0.364,889.

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I. E. BOOTH@v SHOE STRETGHING MACHINE.

No. 864,889. PatentedJline 14, 1887.

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(/nesses Ivenor'. WM cfm? @H76 UNITED STATES PATENT OFFICE.

y IRVING BOOTH, OE ROCHESTER, NEW YORK.

SHOE-STREToHlNe MACHINE.

SPECIFICATION forming part ol' Letters Patent No. 364,889, dated June 14, 1887.

Application filed January 3, 1R87. Serial No. 223,153.

To all w25/0m it may concern.-

Be it known that I, InvINe E. BOOTH, a citizen of the United States, residing at Rochester, in the county of Monroe and'State of New York, have invented certain newand useful,

Improvements in Machines for Stretching and Finishing Shoes; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the drawings accompanying this specification.

My improvements relate to stretching-ma` ehines of that class in which the stretchingjaws may be inverted or turned over while still separated; and the principal object of my invention is to provide a simple means to accomplish this object.

A furtherobject is to simplify the construction and operation of such a machine by the details of construction, hereinafter more fully described and definitely claimed.

This invention is au improvement on my stretehingmachine for which Letters Patent were issued January 11, 1887, No. 355,966, to which reference may be had.

In the accompanying drawings, Figure l is a top plan view of the stretching-machineembod-ying my invention. Fig. 2 is an -cnd View ofthe same with the supporting-bar removed. Fig. 3 is a longitudinal section through the line y y of Fig. l. Fig. 4 is a longitudinal section through the line x w of Fig. 1. Fig. 5 is a longitudinal view of the supporting-bar,

The jaws A B are placedloosely inthe sup-- I ports C D, which are preferably made in one piece, as'shown. These supports CD are held on one side by the rod E, about which they can revolve freely. The opposite sides of the supports C D rest by their own weight upon the uprightsfg of the frame II when in the position shown, and upon the'v uprights h 't' when the supports are revolved about the rod E to invert the jaws.

F and G are counterweights to partly balance the weight of the supports and the jaws and their attachments about the rod E. The rod E, which slides freely in the bearings p q of the frame II, receives motion inthe direction of its length by means of the bellcrank (No model.)

r, one arm of which is connected to the rod E, as shown in Fig. 3, and the other arm connected by a rod to a treadle, (not shown,) to be operated by the'foot in the usual manner. This treadle is maintained in an elevated position, the rod E at the limit of its backward stroke, and the jaws ina closed position by means of the spring O, placed around the rod E, one end pressing against the collar ,which is firmly fastened to the rod, and the other end against the bearing q.

Fitted loosely to the rod E, and extending out from it at right angles to its axis, is the cross-bar I. This cross-bar is free to revolve about the rod E, but is compelled to move longitudinally with it by means of the collars ab, which are securely fastened to the rod E. The outer end of the cross-bar I is supported and guided in its movements by the guiderods d c, which pass through thclugs tu in the crossbar I and are fastened at their ends to the supports C D.

J and Kvare links pivoted at one end to the pine of the crossbar I, and the other ends attached to thejaws A B bythe pinsj 7c. The links L M are cach pivoted at oneend to the support D by the pins Z m, the other ends being attached to the jaws by the pins n o. These links L M serve to hold the jaws in position in the direction of their length, and answer the same purpose as the pins and crossslots of my former patent before referred to, and are au improvement on them, as they operate with less friction and are more easily constructed. lThey can be used in connection with the back disk in place of the pins and cross-slots in said machine.

As shown in Figs. l and 4, a coilspring, N, is attached by suitable lugs to the rear portion of the jaws A B, and tends to retain the rear n portion of said jaws in a closed position, but

is sufficiently yielding to permit the jaws to be spread apart in the Operation of the machine.

Extcnding under the jawsA B across the front of the machine and serving as a support for the outer ends of the jaws A B is a bar, l?, which is proyided with depressions o w, into which the buttons of the shoe may beprojeeted to prevent their being compressed or strained in the treeing operation. This bar is not essential to the machine,bnt is desirable on some classes of work where heavy malleting is to be done.

In operation the boot-leg is sleeved over the shaping-jaws while in the closed position, as shown in Fig. l. XVhcu the boot is in the proper position, the treadle is depressed, and the shaping-jaws thereby separated until the boot-leg is stretched to the desired degree, in which position the jaws are maintained by the means usually employed in boot -trees. Vhen the treeing operation has been completed on one side of the boot, the jaws are rotated, while Still separated, about the rod E, thus bringing the other side of the boot in position to be operated upon.

This invention differs from that described and shown in my former patent, inasmuch as the supports for the jaws, instead of turning` axially or on their own center to invert the jaws, are attached to bearings on one side of the centcr`and swing bodily from one side to the other, andare supported iu the opposite positions by suitable stops. By this means some advantages are attained, as the work is more readily handled and is held in more convenient position for operation. The bearings are also lighter, and by the use of counterweights, as described, they are accurately balanced, so that the frame can be easily turned from one side to the other, which is a matter of importance to facilitate rapid work.

Having described my invention, I do not claim, broadly, rotatingjaws capable of being inverted in position; neither do I claim, broadly, toggle arms or levers for expanding the jaw.

IVhat I claim as new, and desire to secure by Letters Patent, is-

1. In a machine for stretchingand finishing shoes, the combination, with a sliding shaft, of bearings on the shaft extending out laterally on one side and a pair of stretching-jaws supported in the bearings,the whole arranged, as described, so that the jaws can be reversed and thrown from side to side, as specified.

2. In a machine for stretching and finishing shoes, the combination of a sliding shaft, bearings extending out laterally from the shaft, a

pair of stretching-jaws supported in the bear- 5o ings, and stops on opposite sides on which the bcaringsstriketo limit the motion in either direction, as set forth.

3. In a machine for stretching and finishing shoes, the combination of a sliding shaft, bearings extending out laterally from the shaft, a pair of stretching-jaws supported in the bearings, and a bar resting under the jaws, with cavities on opposite sides to receive the buttons of the shoes when the jaws are thrown from one side to the other, as described.

4. In a machine for stretching and finishing shoes,the combination of a pair of stretchingjaws, bearings for the jaws capable of being reversed in position, a shaft capable of end movement, and means, substantially as described,connected with the shaft for spreading the jaws, as set forth.

5. In a machine for stretching and finishing shoes, lthe combination of a pair of stretchingjaws, bearings for the jaws capable of being reversed in position, a shaft capable of end movement, a cross-bar attached to the shaft, links connecting the cross-bar with the jaws for spreading the saine, and links connecting thejaws with one ofthe bearings in which the jaws rest, as and for the purpose specified.

G. In a machine for stretching and finishing shoes, the combination of the supporting-bar P, the stretching-jaws AB, the jaw-supports C D, thepivot around which the supports rcvolve, and means, substantially as described, for spreading the jaws, as set forth.

7. In a machine for stretching and finishing shoes, the combination of a pair of stretching- 85 jaws, bearings for the jaws capable of being swung bodily from side to side, a shaft on which the bearings turn, said shaft capable of end movement, means, substantially as described, connected with the shaft for spreading thejaws, a bell-crank for producing end movement of the shaft, and a spring for retracting the same, as set forth.

IRVING E. BOOTH.

lVitnesses:

Q. W. Boo'rn, H. H. ROBINSON. 

